16 results about "Copper carbonate" patented technology

Provided is a copper oxide, for which the specific surface area measured by a nitrogen adsorption method is 2.9 m2 / g or more, and the tap density measured in accordance with JIS Z 2512: 2012 is less than 1.1 g / cm3.

This invention relates to a deodorant, its preparation method, and its application, belonging to the field of deodorization technology. The invention provides a deodorant preparation method, specifically involving the following steps: a mineral-based deodorizing carrier, anhydrous calcium chloride, magnesium stearate, calcium peroxide, ferrous sulfate, basic copper carbonate, zinc oxide, and mesoporous silica are orderly mixed to obtain a composite powder. This powder is then mixed with a sodium silicate aqueous solution, kneaded, pressed into shape, and cured to obtain a raw blank. The raw blank is then immersed in a composite treatment solution containing silica sol, a silane coupling agent, and nano-titanium dioxide. After removal, it is dried and heat-treated to obtain the deodorant. The deodorant prepared by this invention can be applied to kitchens, bathrooms, and shoe cabinets, exhibiting excellent deodorizing effects.

The invention relates to the field of bronze ware, in particular to a bronze ware distressing method which comprises the following steps: S1, cleaning the surface of a bronze ware, uniformly coating the cleaned surface of the bronze ware with an etchant, and standing to obtain an oxidized bronze ware; s2, the surface of the oxidized bronze ware is washed until eluate is clear, then the whole oxidized bronze ware is soaked in a sodium bicarbonate solution for 24 h, the pH is 7.5-8, and the rusted bronze ware is obtained; s3, the rusted bronze ware is washed and dried, and the antique bronze ware is obtained; the corrosion inducing agent is at least one of silver nitrate, copper chloride and aspartic acid. According to the method, the surface of the bronze ware is eroded through the corrosion inducing agent, then the basic carbonate aerugo rust layer is formed on the erosion layer of the bronze ware through sodium bicarbonate induction, and finally the antique bronze ware is obtained through washing and drying, so that the antique effect of the surface of the bronze ware can be achieved within a short time; and uniform distribution of the antique layer on the surface of the bronze ware can be ensured.

The application discloses MgCuNiMn-O polygranules and a preparation method and application thereof, and comprises the following steps: mixing magnesium carbonate, manganese carbonate, copper carbonate, nickel carbonate and sodium bicarbonate, uniformly performing dry ball milling to obtain a mixed powder; adding a mixed solution of an organic binder and a dilute solvent into the obtained mixed powder, performing wet ball milling to prepare a slurry; performing spray granulation on the obtained slurry to obtain spherical precursor granules; performing programmed temperature annealing treatment on the obtained spherical precursor granules in a protective atmosphere; and after cleaning and drying the obtained annealing product, the MgCuNiMn-O polygranules are obtained. The method can prepare granules with spherical morphology, multi-stage pore structure and high specific surface area through component precise regulation and a double pore-forming mechanism, effectively solves the bottleneck of uneven dispersion of multi-component materials and microstructure regulation difficulty, and the obtained product has excellent electromagnetic wave absorption performance and application potential in the wave absorption field.

The application discloses a targeted drug for treating glioma and a preparation method and application thereof. Alkaline copper carbonate, dopamine hydrochloride and ammonia water are mixed and dissolved, then defatted cotton is added, stirring is conducted until the defatted cotton is dissolved, and copper ammonia fiber solution is obtained by reaction at room temperature; a mixed solution of soluble copper ion salt, zinc ion salt and cobalt ion salt is prepared as a metal ion acid bath solution; the copper ammonia fiber solution is slowly injected into the metal ion acid bath solution, stirring reaction is completed, and then centrifugal separation is conducted; the obtained precipitate is added into a temozolomide solution, ultrasonic treatment is conducted under ice bath, and then centrifugal separation is conducted to obtain a precipitate; the precipitate is washed and freeze-dried to obtain polydopamine modified temozolomide adsorbed copper ammonia fiber; finally, the obtained polydopamine modified temozolomide adsorbed copper ammonia fiber is added into phosphate buffer solution containing Anti-ATRX antibody for incubation, and then washing, freeze-drying and grinding are conducted to obtain the product.

This provides an improved process for forming wash-coated catalyst articles. [Solution] (a) At least the following components: (i) H + or NH4 + A method comprising: (ii) forming a slurry by mixing together a crystalline molecular sieve, wherein the crystalline molecular sieve is a microporous molecular sieve, (ii) an insoluble active metal precursor containing copper(II) carbonate, and (iii) an aqueous solvent, wherein the slurry has a solid content of up to 50% by weight, and step (a) is carried out at a temperature in the range of 10 to 35°C; (b) coating a substrate with the slurry formed in step (a); and (c) firing the coated substrate formed in step (b) to form a catalyst layer on the substrate. Further providing catalyst articles and exhaust systems suitable for use in the selective catalytic reduction of nitrogen oxides.

The invention belongs to the technical field of synthesis gas chemical industry and catalytic materials, and particularly relates to a copper-based catalyst for hydrogen production through methanol cracking and a preparation method thereof. The catalyst comprises a catalyst metal active component, an auxiliary agent and a catalyst carrier, wherein the metal active component is copper and can be one of copper nitrate, copper carbonate and copper sulfate, and the content of the metal active component is 70-88%. Compared with the prior art, the catalyst provided by the invention provides a strong Lewis acid site, can promote migration and deep dehydrogenation of methoxyl intermediates for methanol dehydrogenation on the surface of Cu metal, remarkably improves the selectivity of main products CO and H2, and reduces the selectivity of intermediate products dimethyl ether and methyl formate.

The present application relates to the technical field of ceramic tiles, and in particular to a marble ceramic tile with locally positioned micro light and a preparation method thereof. The present application discloses a marble ceramic tile with locally positioned micro light, which comprises a body, and further comprises a glaze layer, a flash glaze layer and a protective glaze layer attached to the body in sequence. The flash glaze material for forming the flash glaze layer comprises the following raw materials in parts by weight: flash powder 30-50 parts, high-calcium dry particles 10-30 parts and protective powder 1-3 parts. The flash powder comprises the following raw materials in parts by weight: iron oxide 5-8 parts, manganese oxide 5-8 parts, copper carbonate 5-8 parts, cobalt oxide 5-8 parts and fluorescent powder 10-18 parts. The marble ceramic tile of the present application replaces the externally added flash phase with spontaneous crystallization of the flash glaze material during the firing process, which can impart flash decoration to the glaze surface without affecting the thorough and transparent characteristics of the glaze layer itself, and can also eliminate the impurity and jarring feelings of the glaze surface.

The invention belongs to the technical field of synthesis gas chemical industry and catalytic materials, and particularly relates to a copper-based catalyst for hydrogen production through methanol cracking and a preparation method thereof. The catalyst comprises a metal active component, a catalyst auxiliary agent and a catalyst carrier, the metal active component is copper and is selected from one of copper nitrate, copper carbonate and copper sulfate, and the composition range is 55-75%; the catalyst carrier is Al, the Al source comprises at least one of Al < 3 + > salts, and the composition range is 10-20%; the catalyst auxiliary agent comprises at least one of zinc, magnesium and barium; the composition range is 1-20%. Compared with the prior art, the catalyst has the advantages that particles are recombined through a'dissolution-reprecipitation 'process, crystal defects are reduced, a more stable precursor structure is formed, and more uniform deposition of Cu species is promoted during subsequent precipitation with CuZnAl salt, so that the synergistic effect between Cu and Zn and Al is enhanced, and the activity and stability of the catalyst are effectively improved.

The invention relates to the technical field of preparation of active copper oxide, in particular to a process for preparing active copper oxide by taking crude copper sulfate as a raw material, which comprises the following steps: reacting an aqueous solution of crude copper sulfate with a certain amount of H2O2, and then adjusting the pH value for the first time by using a NaOH solution; adding a ferric sulfate solution into the obtained solution, heating and stirring, and then adjusting the pH value for the second time by using a NaOH solution, so that impurity ions form precipitates, thereby obtaining a refined copper sulfate solution; adding a certain amount of sodium carbonate precipitant into the refined copper sulfate solution, and reacting to generate basic cupric carbonate precipitate; washing and drying the basic cupric carbonate precipitate for multiple times, and calcining the basic cupric carbonate precipitate in a muffle furnace to generate copper oxide; the crude copper sulfate is used as the raw material to prepare the active copper oxide, the crude copper sulfate is a relatively cheap industrial raw material and is wide in source, and when the crude copper sulfate is used as the raw material for preparing the active copper oxide, the production cost can be reduced, and the economic benefit can be improved.

The application is suitable for the technical field of wastewater treatment and resource recovery, and provides a resource treatment method for electroplating waste liquid, which is aimed at the waste liquid containing copper sulfate and sulfuric acid generated in the copper electroplating process, copper sulfate is generated by adding copper oxide, copper hydroxide or copper carbonate and the like into the waste liquid to react with free sulfuric acid in the waste liquid; then, the saturated copper sulfate solution after reaction is controlled in speed and cooled to crystallize, and high-purity copper sulfate crystals are separated; the crystallization mother liquor can be recycled to the reaction step to further improve the recovery rate, and finally, the tail liquid enriched with impurities is subjected to pH adjustment and ion exchange resin adsorption treatment to realize standard discharge. The application can efficiently convert sulfuric acid and copper ions in the waste liquid into electronic-grade copper sulfate products which can be directly reused in the electroplating process, realizes high-value recovery of resources, and reduces disposal cost and environmental pressure.

The invention discloses MgCuNiMn-O polymeric particles and a preparation method and application thereof.The preparation method comprises the following steps that magnesium carbonate, manganese carbonate, cupric carbonate, nickel carbonate and sodium bicarbonate are mixed and subjected to dry ball milling to be uniform, and mixed powder is obtained; adding a mixed solution of an organic binder and a diluting solvent into the obtained mixed powder, and carrying out wet ball milling to prepare slurry; carrying out spray granulation on the obtained slurry to obtain spherical precursor particles; carrying out temperature programming annealing treatment on the obtained spherical precursor particles in a protective atmosphere; and the obtained annealing product is cleaned and dried, and then the MgCuNiMn-O polymer particles are obtained. According to the method disclosed by the invention, through precise component regulation and control and a dual pore-forming mechanism, particles with spherical morphology, a hierarchical porous structure and a high specific surface area are prepared, the bottlenecks that a multi-component material is non-uniform in dispersion and a microstructure is difficult to regulate and control are effectively solved, and the obtained product shows excellent electromagnetic wave absorption performance and application potential in the field of wave absorption.

The invention belongs to the technical field of jun porcelain manufacturing, and particularly relates to copper red glaze with earthworm mud patterns and a preparation method thereof, and the copper red glaze is prepared from the following raw materials: basic glaze, a coloring agent combination, a texture inducer and a fluxing agent; the colorant combination comprises one or two of cuprous oxide and cupric carbonate; the texture inducer comprises one or two of silica and calcined zinc oxide; the fluxing agent comprises one or more of feldspar, plant ash and glass powder; the preparation method comprises the following steps: proportioning and ball-milling; uniformly applying the glaze slip to the surface of a ceramic body subjected to biscuit firing; naturally drying the glazed green body at normal temperature or drying the glazed green body at low temperature of 40-60 DEG C; the dried green body is placed in a kiln for green body firing; according to the method, the texture inducer is scientifically proportioned, the firing system is optimized, and particularly, a key slow cooling process window is designed, so that the method can actively guide and not passively depend on the furnace transmutation, and the generation of the earthworm mud grains becomes stable and controllable.

The invention relates to the technical field of fuel cells, in particular to a method for improving performance of a direct coal fuel cell by using basic carbonate, which comprises the following steps: placing coal, basic carbonate and electrolyte in an anode chamber of the fuel cell, basic carbonate being selected from at least one of basic nickel carbonate, basic copper carbonate and basic cobalt carbonate, and electrolyte being selected from at least one of basic copper carbonate and basic cobalt carbonate; wherein the basic carbonate is an additive, and the mass ratio of the fuel to the basic carbonate to the electrolyte is 1: (0.05-0.4): (2-10). According to the method, on the basis that coal does not need to be pretreated, the performance of the direct coal fuel cell is improved by directly adding a certain amount of basic carbonate into the coal powder.

The application belongs to the technical field of tungsten-copper alloy, and particularly relates to a high-thermal-conductivity tungsten-copper alloy and a preparation method thereof. The preparation method comprises the following steps: S1, obtaining ammonium paratungstate, copper oxide, copper tungstate, basic copper carbonate, a silver-containing compound, an organic complexing agent, a rare earth oxide and copper powder as raw materials; S2, ball-milling the raw materials except the copper powder to obtain a composite sol, drying the composite sol to obtain a precursor powder, and heat-treating the precursor powder to obtain a composite powder; and S3, layering and pressing the composite powder and the copper powder according to a structure of 'bottom layer copper powder-composite powder-top layer copper powder' to obtain a composite compact, and sintering the composite compact by melting and infiltrating to obtain the tungsten-copper alloy. The application forms a three-level core-shell structure of 'tungsten core-copper-silver solid solution shell-rare earth transition layer', and the comprehensive performance is better than that of an existing silver nitrate / silver powder system, and no harmful gas is discharged, so that the green manufacturing demand is met.

The invention relates to the technical field of air purification, in particular to an air peculiar smell removing agent for spraying and a preparation method thereof, and the air peculiar smell removing agent comprises nano-zinc oxide, organic acid copper or copper carbonate. According to the removing agent disclosed by the invention, the nanometer oxidizing agent is used as a main functional component, and the organic acid copper or copper carbonate is added, so that the stability is better, and the removing agent still has a remarkable peculiar smell removing effect within a relatively long period and does not generate white spots.